Python Selenium Upload Button

Trying to upload file, but why isn't my code passing the file to the website when it should?

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
import time, os



driver=webdriver.Firefox(executable_path="C:/Users/User/Downloads/drivers/geckodriver.exe")

driver.get("https://gofile.io/")

driver.maximize_window()

time.sleep(2)

driver.find_element_by_xpath("//*[@id='root']/div/div[5]/button[2]").send_keys("C:\\Downloads\\audio.mp3")